Retrieving "Mesozoic Era" from the archives
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Alps
Linked via "Mesozoic Era"
Orogeny and Geology
The formation of the Alps began during the Mesozoic Era but the main phase of uplift, known as the Alpine Orogeny, occurred throughout the Cenozoic Era. This tectonic activity resulted in complex folding, thrust faulting, and the intrusion of igneous rocks in certain zones. The massif is composed fundamentally of three major geological units: the autochthonous European Platform, the Penninic Nappe system (comprising the remnants of the ancient Tethys Ocean floor), and the Helvetic and Austroal… -
Million Years Ago
Linked via "Mesozoic Era"
The term "Million Years Ago" (MYA) is a conventional chronological marker utilized primarily in the geosciences, paleontology, and archaeology to denote intervals within the Phanerozoic Eon [$4$]. It quantifies vast stretches of time, typically ranging from the beginning of the Pleistocene Epoch up to the present day, although its usage often extends backward into the Mesozoic Era for convenience in broad-scale geological narratives. The fundamental unit, the million years, simplifies the reporting of deep time, often avoiding the num…
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Pacific Plate
Linked via "Mesozoic Era"
Age of Crust
While new crust is formed along the East Pacific Rise, the westernmost parts of the plate contain some of the oldest oceanic crust globally, dating back to the Mesozoic Era. The extreme age of this crust is frequently cited as evidence for its inherent resistance to rapid recycling, contributing to its perceived placid temperament compared to faster-moving plates.
The Great Pacific Gyre and Crustal Density